Bolt-fastening



y which--v 'iii `f vvUNTED -STATES vRAT ENT GFFICE. f

OARROLL eARNETT," OF FRONT ROYAL, VIRGINIA.

- To all wh'ow zit may concern:

Beit known thatL CARROLL GARNETT, a citizen of the United States, residing at Front Royal, in the county o f Warren and State of 5 Virginia, have invented a new and useful Bolt,- o f which the following is a specification. r'.lhisinve'ution has relationto bolts`,'and more especially to the means for securing the 4same in alocked position. 'lo An essentialfeature of the invention is the combination, with a bolt having an annular groove at the end remote from its head, of a locking-plate having companion openings intercommunicatinggfone of the said openings juni 5 having an inner ledge rorshoulder at one end to engage, with' the 'outer-wall ofthe annular l"the latter, the portion of the bolt exterior to,

the annular groove entering the enlarged end zo of the opening inl the locking-plate, so as to v: v preventv longitudinal movement and displacement thereof after'the parts have been properly positioned.v l e For afull understanding of the merits andA 25' advantages of the invention reference is to 'following-.description. The improvement Ais susceptible of various changes 'in the formyproportiom and the be ihaidto' the accompanying drawings and the 3o minor de milsf @instruction/without departing fro'mzlithe vprinciple'- or sacricing anyv of the advantagesl thereof," andto` aj f ull. disclosure v'of the v invention vvan adaptation thereof is shown in thefacconipanying drawings;in

. Figure 1 is va perspective lvievv'offla...l thrillcoupling', showing an vapplication of` the 'in-7 vention. Fig. 2 is an elevation thereof, partly "in section. Fig. 3 is a detail perspective View 4o of .the locking-plate. Fig.. 4 is a detail view `fthe bolt.

-plat-e. orresponding and like parts vare referred in the following descriptionand indicated allthe views of theldrawings by the same y reference characters.

Fig. 5 is a plan Viewv of the lock- In the drawingsthe-thill-coupling 1 is shown as a matter of couyenient illustration -for deml onstrating the vapplication of the invention. y `5o The bolt 2 is mounted in openings formed in e the ears or cheek-pieces of the clip,and is I- providedat the end remote from the head with SPECIFICATION forming part ofV Letters Paten-tulo.' 604,896, dated May 31, 189s.

` *i 'Application filed January 10, 1898. Serial No. 666,241. (No model.)

5 and 6 of like size and-correspondiugto theV diameter of theengaging end ofthe bolt 2. The space between the opposing Walls of the openings at their point of j unctureis less than the diameters of the said lopenings and corresponds to the diameter of the reduced portion of the bolt formed by the annular groove 3. One of the openings, as-G, has an' inner.

flange or shoulder-7 at one end, and the space formed lbetween the opposing sides o'f the flange oshoulder 7 .corresponds to the diameter ofthe reduced portion of the bolt and to the space formed at the juncture ofthe opeuings 5 and 6, As a result of this construction the opening 6 is contracted at one end, i

ceivethe end portion of the bolt exterior to the groove 3 and which ts snugly therein.

After the bolt has been inserted in an opening formed in the part to which it is to be applied the locking-plate is passed over the yprog'ectimg; end which enters the opening 5.

-The locking-plate lis now ymoved longitudinally, so as to bring the end of the bolt inthe opening 6, the reduced or grooved portion 3 entering the space formed at the inner or conv tracted end of the opening, whereby outward jdisplacementof the lockingplate or bolt is prevented by the flange or shoulder y7 engaging `With the outer Wall yof the groove 3. The bolt is moved .in the opening 5 to bring the end/portions exterior to the groove 3 into' the enlarged end of the opening 5,when the locking-plate is in turn secured -against longitudinal movement because ofthe reducedspace at the juncturevof the intercommunicati'ng openin-gs, and which space or passage is of less diameter than the end portion of the bolt seated inthe er1-.-

larged end of lthe opening 6. A spring 8A is which in practice is the inner end, theo'ute'r end of the said Opening being of a size to remounted upon the headed end of the bolt 2 and f Vbears against the oppositeside of the part to .which the bolt is applied and normally exerts an outward pressure against the head of the bolt, thereby serving at all times to hold the engaging end vof 'the .bolt seated within the' enlarged end of the opening G. When applying or releasing the bolt, it is necessary to apply pressure to the head, so as to cause the engaging end ofthe bolt to leave the opening 6 and bring the groove 3 in register With and in the plane of the locking-plate, after which the latter is moved longitudinally to bring the opening in coincident relation with the bolt, when the locking-plate and the bolt can be separated.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is-

l. In combination, a bolt or pin having an annulargroove forming a reduced portion,and

locking-plate provided with a pair of intercommunicating openings, the passage at the juncture of the openings being less than the diameter of the engaging end of the bolt, and one of the openings havingits inner end contracted forming a frange or shoulder to engage with the outer Wall of the said annular groove oi' the bolt, the end portion of the bolt exterior to the groove obtaining a seat in the enlarged end of the opening having itsinner end conti-acted, substantially as set forth.

2. -in combination,a bolt or pin having an annular groove forming areduced portion,a loch` ing-plate having a pair of inter-communicating openings, the space at the juncture of the openings being less than the diameter of the openings, and one of the openings having its inner end contracted forming an inner iiange or shoulder to receive the reduced portion of the bolt and engage with the outer Wall of the annular groove, and a spring arranged to normally move the locking-plate and bolt apart, whereby the engaging end of the bolt is held seated in the enlarged end of the opening having its inner end contracted, snbstan- 4o tially as set forth.

3. In combination, a bolt havin." an annular groove near its outer end, a springinounted upon the inner end of the bolt and adapted to exert an outward pressure against the head thereof when the bolt is in position, and a locking-plate having interconilnunieating openings through one of which the engaging end of the bolt is adapted to be thrust, and the other opening having its inner end contracted forming an inner flange or shoulder to receive the reduced portion of the bolt and engage with the outer wall of the annular groove, the end of the bolt exterior to its reduced portion obtainingaseatin the enlarged end of the opening having its inner end contracted and held in said seat by the aforedescribed spring, substantially as and for the purpose set forth.

i. in combination, a bolt or pin having a shouldered or projecting portion, a lockingplate having intercolnmunicating openings, one of the openings adapted to have the shouldered end of the bolt or pin thrust therein, and the other opening receiving the said shouldered end by a sliding movement of the locking-plate, and a spring for moving the bolt and locking-plate apart to cause the latter to engage with the shouldered or projecting portion of the said bolt or pin and secure the-latter, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto aflixed mysignature in ythe presence of two witnesses. 

